TWI556151B - Touch sensor integrated type display device - Google Patents

Description

Touch sensor integrated display device

The present invention relates to a touch sensor integrated display device capable of recognizing a user's touch.

Recently, various input devices such as a keyboard, a mouse, a trackball, a joystick, and a digitizer have been used to be disposed between a user and a home appliance or various types of information communication devices. However, such input devices such as a keyboard, a mouse, etc. require the user to learn how to use and occupy space. Therefore, there is an increasing demand for input devices that are convenient and easy to use and that reduce erroneous operations. In response to this demand, the industry has recommended touch sensors that allow users to directly touch the screen with their hands or pens to enter information.

The touch sensor is simple to use, has less failure, and can be input without the user having to use an additional input device. In addition, since the touch sensor enables the user to work quickly and easily through the content displayed on the screen, it can be applied to various display devices.

Touch sensors can be classified into an add-on type and an on-cell type. In the add-on type, the display device is separately manufactured from the touch panel having the touch sensor, and the touch panel is attached to the upper substrate of the display device. In the external embedded type, the touch sensor is directly formed on the surface of the upper glass substrate of the display device.

However, in the structure of the add-on sensor, the completed touch panel is mounted on the display device and has, for example, an increase in thickness or visibility due to a low brightness of the display device. Various problems such as reduced sexuality.

Further, in the structure of the external type sensor, the touch panel is formed on the upper surface of the display device, and the thickness is lowered as compared with the additional type sensor, but there is still a problem. Since the driving electrode layer, the sensing electrode layer, and the insulating layer for insulating the driving electrode layer and the sensing electrode layer constitute the touch sensor, the entire thickness is increased. Thus, the number of processes and manufacturing costs of the externally mounted sensor increases.

Accordingly, a need has arisen for a display device capable of solving the conventional technical problems, and is known in the U.S. Patent No. 7,859,521, entitled "Touch Sensor Integrated Display Device".

The touch sensor integrated display device disclosed in US Pat. No. 7,859,521 divides the common electrode for display to use as a touch driving electrode and a touch sensing electrode to measure the electrostatic capacitance caused by the touch. The amount of change, as well as identifying whether touch and touch locations are present.

According to this configuration, since the touch driving electrodes and the touch sensing electrodes are formed on the same layer, the electrodes that perform the same function are connected to each other in a non-contact manner through the wires. That is, the touch driving electrodes are connected to the touch driving electrode connecting wires through the driving electrode contact holes, and the touch sensing electrodes are connected to each other through the touch sensing electrode connecting wires through the sensing electrode contact holes. Therefore, the touch driving electrodes and the touch sensing electrodes are not in electrical contact with each other.

However, the touch sensor integrated display device disclosed in the U.S. patent has a complicated structure, and the touch driving electrode and the touch sensing electrode are both formed on a single layer of the common electrode for display, and are required to be connected and divided. The separate wires of the drive electrodes and the contact holes for connecting the wires.

This way, because different types of display pixels are arranged in a complicated way in a single way In the conventional touch sensor, the conventional touch sensor integrated display device has a problem of complicated design and deterioration of display characteristics.

One aspect of the present invention provides a touch sensor integrated display device that forms a complicated wire for a touch driving electrode and a touch sensing electrode in a simple and effective manner, thereby avoiding degradation of display characteristics.

Another aspect of the present invention provides a touch sensor integrated display device, which can obtain a high aperture ratio by eliminating a contact hole for connecting a touch driving electrode lead and a touch sensing electrode lead.

Another aspect of the present invention provides a touch sensor integrated display device, which can improve touch performance by reducing parasitic capacitance between a signal wire and a touch electrode and electrostatic capacitance between a touch driving electrode and a touch sensing electrode. .

According to still another aspect of the present invention, a touch sensor integrated display device can enhance stability by cutting off static electricity entering from the outside.

In one aspect, a touch sensor integrated display device includes a plurality of first regions, a plurality of first electrodes are respectively located in the first regions; and a plurality of second regions, wherein the plurality of second electrodes and the plurality of first regions The three electrodes are alternately arranged in the first direction to avoid contact with each other. The first electrodes respectively located in the first region are connected to each other in the first direction, the second electrodes respectively located in the second region are connected to each other in the first direction, and the third electrode edges and the first electrodes respectively located in the second region The direction is crossed in the second direction.

The first area is the same size as the second area, or the size of the first area is n times the size of the second area.

Two first regions are located between the first regions, the first electrodes in the two first regions are connected to one touch routing wire, and the second electrodes in the second region are connected to each other and grounded .

The first electrodes respectively located in the first region are connected to each other by a plurality of first connecting wires, the first wires are arranged to contact the first electrodes, and the second electrodes respectively located in the second region are connected by the plurality of second connections The wires are connected to each other, and the second connecting wires are arranged to contact the second electrode.

The third electrodes respectively located in the second region are connected to each other by a plurality of third connecting wires to form at least two electrically separated groups, the third connecting wires are arranged to contact the third electrodes, and the third connecting wires are arranged as Intersecting with the first and second connecting wires.

The first area and the second area are alternately arranged, and the size of the first area is larger than the size of the second area.

The first electrodes respectively located in the first region are connected to one touch routing wire, and the second electrodes respectively located in the second region are connected to each other and grounded.

The first connecting wire connects the first electrodes in the first region between the second regions, the first connecting wires are connected to each other by the fourth connecting wires, and the second connecting wire connections are respectively located in the second region in the second region The electrodes, the second connecting wires are connected to each other by a fifth connecting wire.

The third connecting wire connects the third electrodes respectively located in the second region, the third connecting wires are connected to each other by the sixth connecting wires to form at least two electrically separated groups, and the sixth connecting wires are arranged to be connected with the fourth The fifth connecting wire crosses.

The first electrode is a touch driving electrode that also functions as a common electrode, and the second electrode is The touch non-sensing electrode is also used as a common electrode, and the third electrode is a touch sensing electrode.

The first electrode is the touch sensing electrode used as the common electrode, the second electrode is a touch non-driving electrode that also functions as a common electrode, and the third electrode is a touch driving electrode.

The touch sensor integrated display device further includes at least one unit pixel electrode, which overlaps each of the first and second electrodes, and the unit pixel electrode is composed of a plurality of sub-pixels for presenting colors.

The touch sensor integrated display device of the present invention has the following advantages, and is adapted to the design of the unit pixel electrode, the gate line and the data line of the display device, and is convenient for designing the touch driving electrode that constitutes the touch sensor, Touch sensing electrodes and wires.

In addition, since the contact hole for connecting the touch driving electrode and the touch sensing electrode is not required, the touch sensor integrated display device of the present invention has advantages for high-resolution products and large-sized products by improving the aperture ratio. advantage.

In addition, since the touch sensing electrodes are not located in the touch driving region, the electrostatic capacitance and the parasitic capacitance can be reduced due to the reduction in the number of the touch sensing electrodes, so the touch sensor integrated display device of the present invention Has the advantage of improving touch performance.

In addition, by connecting the touch driving electrode and the touch sensing electrode to the electrostatic discharge circuit, static electricity entering from the outside can be cut off, so the touch sensor integrated display device of the present invention has the advantage of increasing the stability of the device. .

LCP‧‧‧LCD panel

CFA‧‧‧Color Filter Array

TFTA‧‧‧thin film transistor array

POL1, POL2‧‧‧ polarizing plate

SUB1, SUB2‧‧‧ substrate

G1, G2, GL‧‧‧ gate line

D1, D2, DL‧‧‧ data lines

TFT‧‧‧thin film transistor

Px‧‧‧ pixel electrodes

RP1, RP2‧‧‧ touch sensing routing pad

TP1, TP2‧‧‧ touch drive routing pad

GP1, GP2‧‧‧ grounding pad

TW1, TW2‧‧‧ touch drive routing wire

GW‧‧‧Grounding wire

RW1, RW2‧‧‧ touch sensing routing wire

TA1, TA2, TA3, TA4‧‧‧ touch drive area

SA1, SA2‧‧‧ touch sensing area

S1, S2‧‧‧ touch non-sensing electrodes

Tc11, Tc12, Tc21, Tc22‧‧‧ drive electrode connecting wires

Tx11, Tx12, Tx21, Tx22‧‧‧ touch drive electrodes

Rc1, Rc2~Rc10‧‧‧ touch sensing electrode connecting wires

Rx11, Rx21~Rx101‧‧‧ touch sensing electrodes

Rx12, Rx22~Rx102‧‧‧ touch sensing electrodes

ESD‧‧‧Electrostatic Discharge Circuit

Sc1, Sc2‧‧‧ touch non-sensing electrode connecting wires

R1, R2‧‧‧ area

Sb‧‧‧ bottleneck

Rb‧‧‧ bottleneck

Tb‧‧‧ bottleneck

D‧‧‧汲

G‧‧‧ gate

S‧‧‧ source

CH, CH1, CH2‧‧‧ contact holes

PAS1‧‧‧ first passivation layer

PAS2‧‧‧second passivation layer

INS‧‧‧Organic insulation

GI‧‧‧ gate insulation

SUB‧‧‧ substrate

A‧‧‧ active layer

SL‧‧‧Slit

Rc1b‧‧‧ second floor

Rc1a‧‧‧ first floor

COM‧‧‧Common electrode

1 is a partial block diagram of a touch sensor integrated display device according to a representative embodiment of the present invention.

2 is a top plan view of a touch sensor integrated display device according to a first representative embodiment of the present invention.

Fig. 3A is a top plan view showing an example in which the common electrode is overlaid on the pixel electrode in the region R1 of Fig. 2.

Fig. 3B is a schematic cross-sectional view taken along line I-I' of Fig. 3A.

FIG. 4A is a top plan view showing an example in which the pixel electrode in the region R1 of FIG. 2 is overlaid on the common electrode (touch non-sensing electrode).

Fig. 4B is a schematic cross-sectional view taken along line II-II' of Fig. 4A.

Fig. 5A is a top plan view showing an example in which the common electrode is overlaid on the pixel electrode in the region R2 of Fig. 2.

Fig. 5B is a schematic cross-sectional view taken along line III-III' of Fig. 5A.

Fig. 6A is a top plan view showing an example in which the pixel electrode is overlaid on the common electrode (touch driving electrode) in the region R2 of Fig. 2.

Fig. 6B is a schematic cross-sectional view taken along line IV-IV' of Fig. 6A.

FIG. 7 is a top plan view of a touch sensor integrated display device according to a second representative embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail in conjunction with the drawings. The same reference numbers are used in the drawings to refer to the same or substantially the same parts.

A touch sensor integrated display device according to a first representative embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2. 1 is a touch sense according to a representative embodiment of the present invention A partial block diagram of the detector integrated display device. 2 is a top plan view of a touch sensor integrated display device according to a first representative embodiment of the present invention.

Referring to FIG. 1 , a touch sensor integrated display device according to a representative embodiment of the present invention includes a liquid crystal display panel LCP, and the liquid crystal display panel LCP includes a color filter array CFA and a thin film transistor array TFTA, and a liquid crystal layer (FIG. It is inserted between the color filter array CFA and the thin film transistor array TFTA.

The thin film transistor array TFTA includes a plurality of gate lines G1 and G2, a plurality of data lines D1 and D2, liquid crystal molecules, a thin film transistor TFT, a plurality of pixel electrodes Px, and a common electrode (not shown), wherein a plurality of strips The gate lines G1 and G2 are formed in parallel in the first direction (for example, the X-axis direction) on the first substrate SUB1, and the plurality of data lines D1 and D2 are formed in parallel in the second direction (for example, the y-axis direction) to form a plurality of lines The gate line G1 and G2 intersect, and the liquid crystal molecules are placed in a region defined by the intersection of the gate lines G1 and G2 and the data lines D1 and D2, and the thin film transistor TFT is formed on the gate lines G1 and G2 and the data lines D1 and D2. At the intersection, a plurality of pixel electrodes Px are used to charge the data voltage to the liquid crystal molecules, and the common electrode is placed to form an electric field with the plurality of pixel electrodes Px.

The color filter array CFA includes a black matrix and a color filter (not shown) formed on the second substrate SUB2. The polarizing plates POL1 and POL2 are bonded to the outer surfaces of the first substrate SUB1 and the second substrate SUB2 of the liquid crystal display panel LCP, respectively. An alignment layer (not shown) for setting the tilt angle of the liquid crystal is formed on the inner surfaces of the first substrate SUB1 and the second substrate SUB2 which are in contact with the liquid crystal, respectively. A column spacer may be formed between the first substrate SUB1 and the second substrate SUB2 of the liquid crystal display panel LCP to maintain a molecular gap of liquid crystal molecules.

The common electrode is driven by a vertical electric field such as a twisted nematic (twisted A nematic; TN) mode and a vertical alignment (VA) mode are formed on the second substrate SUB2. On the other hand, the common electrode COM is formed on the first substrate SUB1 in a horizontal electric field driving manner such as an in-plane switching (IPS) mode and a fringe field switching (FFS) mode together with the pixel electrode Px. In a representative embodiment of the present invention, the common electrode COM in the horizontal electric field driving mode is described as an example.

Referring to FIG. 2, the common electrode COM of the touch sensor integrated display device of the first representative embodiment of the present invention includes a first direction (eg, along the x-axis) and a second direction (eg, along the y-axis). A plurality of electrodes Tx11, Tx12, Tx21, TX22, S1 and S2. In the embodiment shown in FIG. 2, the divided common electrodes include four groups, that is, first to fourth groups of touch sensing electrodes Tx11, Tx12, Tx21 and TX22, and two groups, that is, first and second groups of touch non-inductance. The electrodes S1 and S2 are measured. The first to fourth sets of touch sensing electrodes Tx11, Tx12, Tx21 and TX22 are respectively located in the first to fourth touch driving regions TA1 to TA4, and the first and second groups of touch non-sensing electrodes S1 and S2 They are located in the first and second touch sensing areas SA1 and SA2, respectively. The first touch sensing area SA1 is located between the first touch driving area TA1 and the second touch driving area TA2, and the second touch sensing area SA2 is located in the third touch driving area TA3 and the fourth touch. Drive area between TA4. The second touch driving area TA2 and the third touch driving area TA3 are placed adjacent to each other. According to the configuration, the second touch driving area TA2 and the third touch driving area TA3 are located between the first touch sensing area SA1 and the second touch sensing area SA2.

The 1-1 touch driving electrodes Tx11 of 10 rows and 3 rows are located in the first touch driving area TA1 to form a first group of touch driving electrodes Tx11. The three rows of touch driving electrode connection wires for contacting the 1-1 touch driving electrodes Tx11 are arranged along the y axis in the first touch driving region TA1. That is to say, three rows of 1-1 touches respectively contacting the three rows of the touch drive driving electrodes Tx11 The drive electrode connecting wires Tc11 are arranged along the y axis.

The 1-2 touch driving electrodes Tx12 of the ten rows and three rows are located in the second touch driving area TA2 to form the second group of touch driving electrodes Tx12. The three rows of touch driving electrode connection wires for contacting the 1-2 touch driving electrodes Tx12 are arranged along the y axis in the second touch driving region TA2. That is, the three rows of 1-2 touch driving electrode connection wires Tc12 that are respectively in contact with the three rows of the 1-2 touch driving electrodes Tx12 are arranged along the y axis.

The 3-1 touch driving electrodes Tx21 of the ten rows and three rows are located in the third touch driving area TA3 to form a third group of touch driving electrodes Tx21. The three rows of touch driving electrode connection wires for contacting the 2-1 touch driving electrodes Tx21 are arranged along the y axis in the third touch driving region TA3. That is, the three rows of 3-1 touch driving drive connecting wires Tc21 of the three rows contacting the 2-1 touch driving electrodes Tx21 are arranged along the y axis.

The ten-row and three-line 2-2 touch driving electrodes Tx22 are located in the fourth touch driving area TA4 to form a fourth group of touch driving electrodes Tx22. The three rows of touch driving electrode connection wires for contacting the 2-2 touch driving electrodes Tx22 are arranged along the y axis in the fourth touch driving region TA4. That is, the three rows of 2-2 touch drive electrode connection wires Tc22 of the three rows contacting the 2-2 touch drive electrodes Tx22 are arranged along the y axis.

The first touch sensing electrodes S1 of the ten rows and three rows are located in the first touch sensing area SA1 to form a first group of touch non-sensing electrodes S1. The first touch non-sensing electrode connecting wires for contacting the three rows of the first touch non-sense electrodes S1 are arranged along the y axis in the first touch sensing area SA1. That is, the three rows of the first touch non-sensing electrode connecting wires Sc1 that are respectively in contact with the three rows of the first touch non-sense electrodes S1 are arranged along the y-axis. In addition, the ten rows of the first touch sensing electrodes S1 and the ten first touch sensing electrodes Rx11, Rx21 in the first touch sensing area SA1, Alternating Rx31, ..., Rx101, and first to tenth touch sensing electrode connecting wires Rc1 to Rc10 respectively contacting ten rows of first touch sensing electrodes Rx11, Rx21, Rx31, ..., Rx101 The x-axis is arranged.

The second touch sensing electrodes S2 of the ten rows and three rows are located in the second touch sensing area SA2 to form a second group of touch non-sensing electrodes S2. The second touch non-sensing electrode connecting wires that are in contact with the three rows of the second touch sensing electrodes S2 are arranged along the y axis in the second touch sensing area SA2. That is, the three rows of second touch non-sensing electrode connection wires Sc2 that are respectively in contact with the three rows of the second touch non-sensing electrodes S2 are arranged along the y-axis. In addition, the ten columns of the second touch sensing electrodes S2 alternate with the ten columns of the second touch sensing electrodes Rx12, Rx22, Rx32, . . . , Rx102 in the second touch sensing region SA2, and The first to tenth touch sensing electrode connection wires Rc1 to Rc10 of the ten rows of the second touch sensing electrodes Rx12, Rx22, Rx32, ..., Rx102 are respectively arranged along the x-axis.

As shown in FIG. 2, the first to tenth touch sensing electrode connection wires Rc1 to Rc10 are arranged to extend from the first touch sensing area SA1 and the second touch sensing area SA2 to the first to fourth The touch driving areas TA1 to TA4 are placed in the first to fourth touch driving areas TA1 to TA4 and the 1-1, 1-2, 2-1, and 2-2 touch driving electrode connecting wires Tc11, Tc12, Tc21 and Tc22 intersect.

According to this configuration, the end portion of the 1-1 touch driving driving electrode connecting wire Tc11 contacting the touch panel driving electrode Tx11 and the 1-2 touch driving driving electrode connecting wire Tc12 contacting the 1-2 touch driving electrode Tx12 One end of the wire connected to each other, the 1-1 touch driving electrode Tx11 in the first touch driving area TA1 and the 1-2 touch driving electrode Tx12 in the second touch driving area TA2 are connected to the first Touch driver routing wire TW1. 1-1 touch driver The other ends of the electrode connection wires Tc11 and the other ends of the 1-2 touch drive electrode connection wires Tc12 are connected to each other, and then connected to the ground wires GW via the electrostatic discharge circuit ESD. The grounding conductor GW includes two ends connected to the ground pads GP1 and GP2, respectively.

Similarly, the end of the 2-1 touch drive driving electrode connecting wire Tc21 contacting the 2-1 touch driving electrode Tx21 and the end of the 2-2 touch driving electrode connecting the wire Tc22 contacting the 2-2 touch driving electrode Tx22 The 2-1 touch drive driving electrode Tx21 in the third touch driving area TA3 and the 2-2 touch driving electrode Tx22 in the fourth touch driving area TA4 are connected to the second touch driving. The other end of the touch drive electrode connection wire Tc21 and the other end of the 2-2 touch drive electrode connection wire Tc22 are connected to each other, and then connected to the ground wire GW via another electrostatic discharge circuit ESD. .

The first touch driving routing wire TW1 and the second touch driving routing wire TW2 are respectively connected to the first touch driving routing pad TP1 and the second touch driving routing pad TP2, and supply the touch driving voltage to 1 -1 and 1-2 touch drive electrodes Tx11 and Tx12 and 2-1 and 2-2 touch drive electrodes Tx21 and Tx22.

In the embodiment shown in FIG. 2, the touch driving electrodes are illustrated by using a first touch driving line and a second touch driving line, wherein the first touch driving line is touched by 1-1 and 1-2. The control driving electrodes Tx11 and Tx12 and the 1-1 and 1-2 driving electrode connecting wires Tc11 and Tc12 are composed, and the second touch driving wires are driven by the 2-1 and 2-2 touch driving electrodes Tx21 and Tx22 and 2-1 and 2 -2 drive electrode connection wires Tc21 and Tc22. The embodiment shown in FIG. 2 is only representative. By adjusting the number of touch driving electrode connection lines connected by the connecting portion, the number of touch driving lines can be determined as needed.

Passing the first touch non-sensing electricity that is in contact with the first touch non-sensing electrode S1 The first touch sensing electrode S1 in the first touch sensing area SA1 is connected to the grounding wire GW. The connecting portion of the pole connecting wire Sc1 is connected to each other. After the ends of the second touch non-sense electrode connection wires Sc2 that are in contact with the second touch sensing electrodes S2 are connected to each other, the second touch non-sensing electrodes S2 located in the second touch sensing area SA2 Connect the grounding conductor GW.

Connecting the wires Rc1 to Rc5 through the first to fifth touch sensing electrodes that are in contact with the first to fifth touch sensing electrodes Rx11 and Rx12; Rx21 and Rx22; Rx31 and Rx32; Rx41 and Rx42; and Rx51 and Rx52; Connecting portions of the ends connected to each other, first to fifth touch sensing electrodes Rx11 and Rx12; Rx21 and Rx22; Rx31 and Rx32; Rx41 and Rx42; and Rx51 and Rx52 are connected to the first touch sensing routing wire RW1. The other ends of the first to fifth touch sensing electrode connecting wires Rc1 to Rc5 are connected together and then connected to the grounding wire GW via a further electrostatic discharge circuit ESD.

The sixth to tenth touch sensing electrodes are connected to the wires Rc6 by contacting the sixth to tenth touch sensing electrodes Rx61 and Rx62, Rx71 and Rx72, Rx81 and Rx82, Rx91 and Rx92, and Rx101 and Rx10 to Connecting wires of the ends of the Rc10, the sixth to tenth touch sensing electrodes Rx61 and Rx62, Rx71 and Rx72, Rx81 and Rx82, Rx91 and Rx92, and Rx101 and Rx102 are connected to the second touch sensing routing wires. RW2. The other ends of the sixth to tenth touch sensing electrode connecting wires Rc6 to Rc10 are connected in common, and then connected to the grounding wire GW by another electrostatic discharge circuit ESD.

The first and second touch sensing routing wires RW1 and RW2 are connected to the first and second touch sensing routings by the first to tenth touch sensing electrode connecting wires Rc1 to Rc5 and Rc6 to Rc10, respectively. Pads RP1 and RP2, and supplies from first to fifth touch sensing electrodes Rx11 and Rx12; Rx21 and Rx22; Rx31 and Rx32; Rx41 and Rx42; and Rx51 The sensing voltages of the Rx 52 and the sixth to tenth touch sensing electrodes Rx61 and Rx62, Rx71 and Rx72, Rx81 and Rx82, Rx91 and Rx92, and Rx101 and Rx102 are applied to a touch processor (not shown).

In the embodiment shown in FIG. 2 , the touch sensing electrodes are illustrated by using two touch sensing lines including a first touch sensing line and a second touch sensing line, wherein the first touch sensing line is First to fifth touch sensing electrodes Rx11 and Rx12; Rx21 and Rx22; Rx31 and Rx32; Rx41 and Rx42; and Rx51 and Rx52 and first to fifth touch sensing electrode connecting wires Rc1 to Rc5, second The touch sensing lines are connected to the sixth to tenth touch sensing electrodes Rx61 and Rx62, Rx71 and Rx72, Rx81 and Rx82, Rx91 and Rx92, and Rx101 and Rx102 and the sixth to tenth touch sensing electrode connecting wires Rc6 to Rc10 composition. The embodiment shown in FIG. 2 is only representative. By adjusting the number of touch sensing electrode connection lines connected to the connection portion, the number of touch sensing lines can be determined as needed.

The touch driving electrodes Tx11 and Tx12 and Tx21 and Tx22 explained above and the touch non-sensing electrodes S1 and S2 are also used as the common electrode COM. In the horizontal electric field type display device, these electrodes are formed on the first substrate SUB1 of the thin film transistor array TFTA together with the pixel electrode Px, and the pixel electrode Px is formed in a region defined at the intersection of the gate line and the data line.

The touch driving electrodes Tx11 and Tx12 and Tx21 and Tx22, which are both used as the common electrode COM, and the touch non-sensing electrodes S1 and S2 are formed to respectively correspond to the unit pixel electrodes (each of the plurality of sub-pixels required for presenting colors) Composition: three sub-pixels in the embodiment of the present invention).

Next, please refer to FIGS. 3A and 3B, and combine the example in which the common electrode (touch non-sensing electrode) in the touch sensing areas SA1 and SA2 is overlaid on the pixel electrode, and describe the present invention. A touch sensor integrated display device of a first representative embodiment. 3A is a top plan view showing an example in which a common electrode (touch non-sensing electrode) is overlaid on a pixel electrode in a region R1 of FIG. 2. Fig. 3B is a schematic cross-sectional view taken along line I-I' of Fig. 3A.

For the sake of simplicity, the following description will focus on the pixel electrode Px located in the region R1. The region R1 includes two portions of the touch non-sensing electrode S1 and is adjacent to the portions of the two touch non-sense electrodes S1. The two touch sensing electrodes are part of Rx11 and Rx21. In the drawing of this embodiment, Px refers to a sub-pixel required to represent a color, and three sub-pixels constituting one unit pixel electrode are taken as an example. In the following description, the three sub-pixels constituting one unit pixel electrode will be simply referred to as a pixel electrode.

Referring to FIG. 2 and FIGS. 3A and 3B, the touch sensor integrated display device of the first representative embodiment of the present invention includes gates formed on the substrate SUB1 of the thin film transistor array TFTA to cross each other. a line GL and a data line DL, a thin film transistor TFT formed at an intersection of the gate line GL and the data line DL, a pixel electrode Px formed in a region defined at an intersection of the gate line GL and the data line DL, and A common electrode COM placed opposite to the pixel electrode Px. In the first representative embodiment of the present invention, the common electrode COM is also used as the touch non-sensing electrode S1. Therefore, the common electrode COM is also referred to as a touch non-sensing electrode S1, the touch non-sensing electrode S1 is also used as a common electrode, or the common electrode COM is also used as a touch non-sensing electrode as appropriate.

In this configuration, the gate line GL is formed on the substrate SUB, and the gate insulating layer GI is formed on the top of the gate line GL. The active layer A, the source S, and the drain D constituting the thin film transistor TFT are formed on the gate insulating layer GI.

Thin film transistor TFT includes gate G, active layer A, source S, and drain D, wherein the gate G extends from the gate line GL formed on the substrate SUB, and the active layer A is formed in a region corresponding to the gate G on the gate insulating layer GI covering the gate line GL and the gate G, the source S extends from the data line DL formed on the gate insulating layer GI and is split to expose a portion of the active layer A.

The gate of the gate bottom structure is formed under the source/drain. Although the embodiment is described in connection with a thin film transistor having a gate bottom structure, the present invention is not limited thereto, and it should be understood that the present invention also relates to having a gate. A thin film transistor of a very top structure in which a gate is formed over a source/drain. The thin film transistor having the gate top structure is a well-known element, and thus a detailed description thereof will be omitted.

The first passivation layer PAS1 is formed on the gate insulating layer GI on which the thin film transistor TFT and the data line DL are formed, and the first passivation layer PAS1 is used to cover the thin film transistor TFT and the data line DL. An organic insulating layer INS such as photoacryl for planarization is formed on the first passivation layer PAS1. A contact hole CH is formed in the organic insulating layer INS and the first passivation layer PAS1 to expose a portion of the drain D.

The pixel electrode Px is formed on the organic insulating layer INS in the pixel region defined at the intersection of the data line DL and the gate line GL. The pixel electrode Px is in contact with the drain D of the thin film transistor TFT by penetrating the contact hole CH of the organic insulating layer INS and the first passivation layer PAS1. Further, the touch sensing electrodes Rx11 are formed in parallel with the gate lines GL on the organic insulating layer INS and between the pixel electrodes Px adjacent to each other along the y-axis. The touch sensing electrode Rx11 includes a bottle neck portion Rb having a narrow width at a region intersecting the bottle neck portion Sb, and the bottle neck portion Sb is used for the touch non-sensing electrode S1 to be described later. The touch sensing electrode connection wire Rc1 is formed on the touch sensing electrode Rx11 in parallel with the gate line GL.

The second passivation layer PAS2 is formed on the pixel electrode Px and the touch sensing power The pole Rx11 and the touch sensing electrode are connected to the organic insulating layer INS of the wire Rc1.

The touch non-sensing electrode connection wire Sc1 is formed on the second passivation layer PAS2 to overlap the data line DL. The touch non-sensing electrode connecting wire Sc1 is placed to pass through the neck portion Rb of the touch sensing electrode Rx11.

The touch non-sensing electrode S1, which is also used as a common electrode, is formed on the second passivation layer PAS2 on which the touch non-sensing electrode connecting wire Sc1 is formed, thereby covering the touch non-sensing electrode connecting wire Sc1. The touch non-sensing electrode S1 overlaps with the pixel electrode Px. Each of the touch non-sensing electrodes S1 to which the common voltage is supplied includes a plurality of slits SL to facilitate formation of a horizontal electric field between the pixel electrodes Px during the display driving operation. Therefore, although the pixel electrode Px formed on the organic insulating layer INS is not provided with a slit, the touch non-sensing electrode S1 formed on the second passivation layer PAS2 is provided with a slit.

Next, please refer to FIG. 4A and FIG. 4B. The modified touch sensor integrated display device of the first representative embodiment of the present invention is described below with reference to examples, wherein in the touch sensing areas SA1 and SA2, The pixel electrode is overlaid on the common electrode (touch non-sensing electrode). FIG. 4A is a top plan view showing an example in which the pixel electrode in the region R1 of FIG. 2 is overlaid on the common electrode (touch non-sensing electrode). Fig. 4B is a schematic cross-sectional view taken along line II-II' of Fig. 4A.

Referring to FIG. 2 and FIGS. 4A and 4B, the touch sensor integrated display device of the first representative embodiment of the present invention includes gates formed on the substrate SUB1 of the thin film transistor array TFTA to cross each other. a line GL and a data line DL, a thin film transistor TFT formed at an intersection of the gate line GL and the data line DL, a pixel electrode Px formed in a region defined at an intersection of the gate line GL and the data line DL, and A common electrode COM placed opposite to the pixel electrode Px. In the modification of the first representative embodiment of the present invention, the first representative of the present invention In the same embodiment, the common electrode COM is also used as the touch non-sensing electrode S1. Therefore, the common electrode COM is also referred to as a touch non-sensing electrode S1, the touch non-sensing electrode S1 is also used as a common electrode, or the common electrode COM is also used as a touch non-sensing electrode as appropriate.

In this configuration, the gate line GL is formed on the substrate SUB, and the gate insulating layer GI is formed on the top of the gate line GL. The active layer A, the source S, and the drain D constituting the thin film transistor TFT are formed on the gate insulating layer GI.

The thin film transistor TFT includes a gate G, an active layer A, a source S, and a drain D. The gate G extends from the gate line GL formed on the substrate SUB, and the active layer A is formed on the gate line GL and the gate. In the region of the gate insulating layer GI of G corresponding to the gate G, the source S extends from the data line DL formed on the gate insulating layer GI and is split to expose a portion of the active layer A.

In the gate bottom structure, a gate is formed under the source/drain. Although the embodiment is described in connection with a thin film transistor having a gate bottom structure, the present invention is not limited thereto, and it should be understood that the present invention also relates to a A thin film transistor having a gate top structure in which a gate is formed over a source/drain. The thin film transistor having the gate top structure is a well-known component, and thus a detailed description thereof will be omitted.

The first passivation layer PAS1 is formed on the gate insulating layer GI on which the thin film transistor TFT and the data line DL are formed, and the first passivation layer PAS1 is used to cover the thin film transistor TFT and the data line DL. An organic insulating layer INS such as photoacryl for planarization is formed on the first passivation layer PAS1. The first contact hole CH1 is formed in the organic insulating layer INS to expose the first passivation layer PAS1 at a local corresponding position of the drain D.

A touch non-sensing electrode S1 connected to each other by the neck portion Sb and also serving as the common electrode COM is formed in the organic insulating layer INS having the first contact hole CH1. That is to say, The two touch non-sensing electrodes S1 are parallel to the data line DL and are formed on the organic insulating layer INS to be connected through at least one bottle neck portion Sb. The touch non-sensing electrode connecting wire Sc1 is formed on the touch non-sensing electrode S1 to overlap with the data line DL. The touch non-sensing electrode connecting wire Sc1 is placed to pass through the neck portion Sb.

The second passivation layer PAS2 is formed on the organic insulating layer INS on which the touch non-sensing electrode S1 and the touch non-sensing electrode connecting wire Sc1 are formed. The second contact hole CH2 exposes a portion of the drain D of the thin film transistor TFT, and the second contact hole CH2 is formed in the first passivation layer PAS1 and the second passivation layer PAS2 exposed by the first contact hole CH1 of the organic insulating layer INS. .

The pixel electrode Px is formed on the second passivation layer PAS2 having the second contact hole CH2 in the pixel region defined at the intersection of the data line DL and the gate line GL. The touch sensing electrode connection wires Rc1 are formed on the second passivation layer PAS2 in a direction parallel to the gate line GL (x-axis direction) between the two pixel electrodes Px adjacent to each other along the data line DL, that is, the y-axis. . The touch sensing electrodes are formed in parallel with the gate lines on the second passivation layer PAS2 on which the touch sensing electrode connection wires Rc1 are formed, thereby covering the touch sensing electrode connection wires Rc1. The touch sensing electrode Rx11 has a bottleneck portion in a region intersecting the bottle neck portion Sb, wherein the bottle neck portion Sb is connected to the adjacent touch non-sensing electrode S1.

The pixel electrode Px overlaps with the touch non-sensing electrode S1. Each of the pixel electrodes Px includes a plurality of slits SL to form a horizontal electric field between the touch non-sensing electrodes S1 to which a common voltage is supplied during the display driving operation. Therefore, although the touch non-sensing electrode S1 formed on the organic insulating layer INS is not provided with a slit, the pixel electrode Px formed on the second passivation layer PAS2 is provided with a slit.

Next, please refer to the 5A and 5B diagrams. According to the touch sensor integrated display device of the first representative embodiment, in the touch driving regions TA1 and TA2, a common electrode (touch driving electrode) is overlaid on the pixel electrode. FIG. 5A is a top plan view showing an example in which the common electrode (touch driving electrode) is overlaid on the pixel electrode in the region R2 of FIG. 2. Fig. 5B is a schematic cross-sectional view taken along line III-III' of Fig. 5A.

Referring to FIG. 2 and FIGS. 5A and 5B, the touch sensor integrated display device of the first representative embodiment of the present invention includes gate lines which are formed on the substrate SUB1 of the thin film transistor array TFTA. GL and the data line DL, the thin film transistor TFT formed at the intersection of the gate line GL and the data line DL, the pixel electrode Px formed in the region defined by the intersection of the gate line GL and the data line DL, and The pixel electrode Px is opposed to the common electrode COM. In the first representative embodiment of the present invention, the common electrode COM is also used as the touch driving electrode Tx12. Therefore, the common electrode COM is also referred to as a touch driving electrode Tx12, the touch driving electrode Tx12 is also used as a common electrode, or the common electrode COM is also used as a touch driving electrode as appropriate.

In this configuration, the gate line GL is formed on the substrate SUB, and the gate insulating layer GI is formed on the top of the gate line GL. The active layer A, the source S, and the drain D constituting the thin film transistor TFT are formed on the gate insulating layer GI.

The thin film transistor TFT includes a gate G, an active layer A, a source S, and a drain D. The gate G extends from a gate line GL formed on the substrate SUB, and the active layer A is formed on the gate line GL and the gate G. In the region of the gate insulating layer GI corresponding to the gate G, the source S extends from the data line DL formed on the gate insulating layer GI and is split to expose a portion of the active layer A.

In the gate bottom structure, a gate is formed under the source/drain. Although the embodiment is described in connection with a thin film transistor having the gate bottom structure, the present invention is not limited to Thus, it should be understood that the present invention also relates to a thin film transistor having a gate top structure in which a gate is formed over a source/drain. The thin film transistor having the gate top structure is a well-known component, and thus a detailed description thereof will be omitted.

The first passivation layer PAS1 is formed on the gate insulating layer GI on which the thin film transistor TFT and the data line DL are formed, and the first passivation layer PAS1 is used to cover the thin film transistor TFT and the data line DL. An organic insulating layer INS such as photoacryl for planarization is formed on the first passivation layer PAS1. A contact hole CH is formed in the organic insulating layer INS and the first passivation layer PAS1 to expose the local drain D.

The pixel electrode Px is formed on the organic insulating layer INS in the pixel region defined at the intersection of the data line DL and the gate line GL. The pixel electrode Px is in contact with the drain D of the thin film transistor TFT by penetrating the contact hole CH of the organic insulating layer INS and the first passivation layer PAS1. The first layer Rc1a of the touch sensing electrode connection wire Rc1 is formed on the organic insulating layer INS, and is located between the pixel electrodes Px adjacent to each other along the data line (ie, the y-axis), and is separated from the pixel electrode Px. The second layer Rc1b is formed on the first layer Rc1a of the touch sensing electrode connection wire Rc1, thereby allowing the touch sensing electrode connection wire Rc1 to have a two-layer structure.

The second passivation layer PAS2 is formed on the organic insulating layer INS on which the pixel electrode Px and the touch sensing electrode connection wire Rc1 are formed.

The touch driving electrode connection wire Tc12 is formed on the second passivation layer PAS2 to overlap the data line DL. The touch driving electrode connection wire Tc12 is placed to cross the gate line GL.

The touch driving electrode Tx12 is also used as a common electrode formed on the second passivation layer PAS2 on which the touch driving electrode connection wire Tc12 is formed. Touch non-sensing electrode S1 and pixel electricity The poles Px overlap. Each of the touch driving electrodes Tx12 includes a plurality of slits SL to form a horizontal electric field between the pixel electrodes Px during the display driving operation. Therefore, although the pixel electrode Px formed by the organic insulating layer INS has no slit, the touch driving electrode Tx12 formed on the second passivation layer PAS2 is configured to include a slit.

Next, please refer to FIG. 6A and FIG. 6B. The modified touch sensor integrated display device of the second representative embodiment of the present invention is described below with reference to examples, in which the touch driving regions TA1 to TA4 are drawn. The element electrode is overlaid on the common electrode (touch non-sensing electrode). Fig. 6A is a top plan view showing an example in which the pixel electrode is overlaid on the common electrode (touch driving electrode) in the region R2 of Fig. 2. Fig. 6B is a schematic cross-sectional view taken along line IV-IV' of Fig. 6A.

Referring to FIG. 2 and FIGS. 6A and 6B, the modified touch sensor integrated display device of the first representative embodiment of the present invention includes the substrate SUB1 formed on the thin film transistor array TFTA to cross each other. The gate line GL and the data line DL, the thin film transistor TFT formed at the intersection of the gate line GL and the data line DL, and the pixel electrode Px formed in the region defined by the intersection of the gate line GL and the data line DL And a common electrode COM placed opposite to the pixel electrode Px. In the modification of the first representative embodiment of the present invention, as with the first representative embodiment of the present invention, the common electrode COM is also used as the touch driving electrode Tx12. Therefore, the common electrode COM is also referred to as a touch driving electrode Tx12, the touch driving electrode Tx12 is also used as a common electrode, or the common electrode COM is also used as a touch driving electrode as appropriate.

In this configuration, the gate line GL is formed on the substrate SUB, and the gate insulating layer GI is formed on the top of the gate line GL. The active layer A, the source S, and the drain D constituting the thin film transistor TFT are formed on the gate insulating layer GI.

Thin film transistor TFT includes gate G, active layer A, source S, and drain D, the gate G extends from the gate line GL formed on the substrate SUB, and the active layer A is formed in a region corresponding to the gate G on the gate insulating layer GI covering the gate line GL and the gate G, the source S The data line DL formed on the gate insulating layer GI extends and splits to expose a portion of the active layer A.

In the gate bottom structure, a gate is formed under the source/drain. Although the embodiment is described in connection with a thin film transistor having the gate bottom structure, the present invention is not limited thereto, and it should be understood that the present invention also relates to A thin film transistor having a gate top structure in which a gate is formed over a source/drain. The thin film transistor having the gate top structure is a well-known component, and thus a detailed description thereof will be omitted.

The first passivation layer PAS1 is formed on the gate insulating layer GI on which the thin film transistor TFT and the data line DL are formed, and the first passivation layer PAS1 is used to cover the thin film transistor TFT and the data line DL. An organic insulating layer INS such as photoacryl for planarization is formed on the first passivation layer PAS1. A contact hole CH is formed in the organic insulating layer INS and the first passivation layer PAS1 to expose a portion of the drain D.

The touch driving electrodes Tx12 are connected to each other by the neck portion Tb and also function as a common electrode COM, and the touch driving electrodes Tx12 are formed on the organic insulating layer INS having the first contact holes CH1. That is, the two touch driving electrodes Tx12 are parallel to the data line DL, and are formed on the organic insulating layer INS to be connected through at least one neck portion Tb. The touch driving electrode connection wire Tc12 is formed on the touch driving electrode Tx12 to overlap the data line DL. The touch driving electrode connection wire Tc12 is placed to penetrate the neck portion Tb.

The second passivation layer PAS2 is formed on the organic insulating layer INS on which the touch driving electrode Tx12 and the touch driving electrode connecting wire Tc11 are formed. The second contact hole CH2 exposes a portion of the drain D of the thin film transistor TFT, and the second contact hole CH2 is formed by the organic insulating layer INS The first contact hole CH1 is exposed in the first passivation layer PAS1 and the second passivation layer PAS2.

The pixel electrode Px is formed on the second passivation layer PAS2 having the second contact hole CH2 in the pixel region defined at the intersection of the data line DL and the gate line GL.

The touch sensing electrode connection wires Rc1 are formed on the second passivation layer PAS2 in a direction parallel to the gate line GL (x-axis direction) between the two pixel electrodes Px adjacent to each other along the data line DL, that is, the y-axis. .

The pixel electrode Px overlaps with the touch non-sensing electrode S1. Each of the pixel electrodes Px includes a plurality of slits SL to form a horizontal electric field between the first and second touch driving electrodes Tx12 to which a common voltage is applied during the display driving operation. Therefore, although the touch driving electrode Tx12 formed by the organic insulating layer INS is not provided with a slit, the pixel electrode Px formed on the second passivation layer PAS2 is configured to include a slit.

Next, a touch sensor integrated display device according to a second representative embodiment of the present invention will be described with reference to FIG. FIG. 7 is a top plan view of a touch sensor integrated display device according to a second representative embodiment of the present invention.

The touch sensor integrated display device of the second representative embodiment of the present invention and the touch sensing of the first representative embodiment of the present invention are arranged in addition to the touch sensing area and the touch driving area. The integrated display device is the same, so only the differences are described.

Referring to FIG. 7, a common electrode COM of a touch sensor integrated display device according to a second representative embodiment of the present invention includes a first direction (eg, along the x-axis) and a second direction (eg, along the y-axis). a plurality of divided electrodes Tx1, Tx2, S1 and S2. In the embodiment shown in FIG. 7 , the divided common electrodes include four groups, that is, the first and second groups of touch driving electrodes Tx1 and Tx2 and the two groups, that is, the first and second groups of touch non-sensing electrodes S1 and S2. First and second groups The touch driving electrodes Tx1 and Tx2 are respectively located in the first and second touch driving regions TA1 and A2, and the first and second groups of touch non-sensing electrodes S1 and S2 are respectively located in the first and second touch sensing. In areas SA1 and SA2.

The first touch driving area TA1 and the second touch driving area TA2 are the same size, and the first touch sensing area SA1 and the second touch sensing area SA2 are the same size. The first touch driving area TA1 and the second touch driving area TA2 are twice the size of the first touch sensing area SA1 and the second touch sensing area SA2. However, the present invention is not limited thereto, and the first touch driving area TA1 and the second touch driving area TA2 may be n times the size of SA1 and SA2 of the first and second touch sensing areas (n is equal to or greater than 2 natural numbers).

The first touch driving area TA1 and the second touch driving area TA2 alternate with the first touch sensing area SA1 and the second touch sensing area SA2. For example, the first touch driving area TA1 is located between the first touch sensing area SA1 and the second touch sensing area SA2, and the second touch sensing area SA2 is located in the first touch driving area TA1 and the second The touch driving area is between TA2.

According to this configuration, the first and second rows of the first touch driving electrodes Tx1 are located in the first touch driving area TA1 to form the first group of touch driving electrodes Tx1. The touch driving electrode connection wires that are in contact with the six rows of the first touch driving electrodes Tx1 are arranged along the y axis in the first touch driving region TA1. That is, the six rows of the first touch driving electrode connection wires Tc1 that are respectively in contact with the six rows of the first touch driving electrodes Tx1 are arranged along the y axis.

The second and sixth rows of the second touch driving electrodes Tx2 are located in the second touch driving area TA2 to form a second group of touch driving electrodes Tx2. The touch driving electrode connection wires contacting the six rows of the second touch driving electrodes Tx2 are arranged along the y axis in the second touch driving region TA2 Column. That is, the six rows of the touch driving electrode connection wires Tc2 that are respectively in contact with the six rows of the second touch driving electrodes Tx2 are arranged along the y-axis.

The first touch sensing electrodes S1 of the ten rows and three rows are located in the first touch sensing area SA1 to form the first group of touch non-sensing electrodes S1. The first touch non-sensing electrode connecting wires that are in contact with the three rows of the first touch non-sense electrodes S1 are arranged along the y axis in the first touch sensing region SA1. That is, the three rows of the first touch non-sensing electrode connecting wires Sc1 that are respectively in contact with the three rows of the first touch non-sensing electrodes S1 are arranged along the y-axis. In addition, the ten columns of the first touch sensing electrodes S1 and the ten columns of the first touch sensing electrodes Rx11, Rx21, Rx31, . . . , Rx101 are alternated in the first touch sensing area SA1, and The first to tenth touch sensing electrode connection wires Rc1 to Rc10 of the ten rows of the first touch sensing electrodes Rx11, Rx21, Rx31, ..., Rx101 are respectively arranged along the x-axis.

The second touch sensing electrodes S2 of the ten rows and three rows are located in the second touch sensing area SA2 to form the second group of touch non-sensing electrodes S2. The second touch non-sensing electrode connection wires that are in contact with the three rows of the second touch non-sensing electrodes S2 are arranged along the y axis in the second touch sensing region SA2. That is, the three rows of the second touch non-sense electrode connection wires Sc2 that are respectively in contact with the three rows of the second touch non-sensing electrodes S2 are arranged along the y-axis. In addition, the ten columns of the second touch sensing electrodes S2 and the ten columns of the second touch sensing electrodes Rx12, Rx22, Rx32, . . . , Rx102 alternate in the second touch sensing area SA2, and The first to tenth touch sensing electrode connection wires Rc1 to Rc10 of the ten rows of the second touch sensing electrodes Rx12, Rx22, Rx32, ..., Rx102 are respectively arranged along the x-axis.

As shown in FIG. 7, the first to tenth touch sensing electrode connecting wires Rc1 to Rc10 are arranged to extend from the first and second touch sensing regions SA1 and SA2 to the first touch driver. The moving area TA1 and the second touch driving area TA2.

According to this configuration, the connection portion connecting the ends of the six rows of the first touch driving electrode connection wires Tc1 in contact with the six rows of the first touch driving electrodes Tx1 is located in the first touch driving region. The six rows of the first touch driving electrodes in TA1 are connected to the first touch driving routing wire TW1. The other ends of the first touch driving electrode connection wires Tc1 are connected to each other, and then connected to the ground wires GW by an electrostatic discharge circuit ESD. The grounding conductor GW includes two ends connected to the ground pads GP1 and GP2, respectively.

a second portion of the second touch driving driving area TA2 is connected by a connecting portion connecting the ends of the six rows of the second touch driving electrode connecting wires Tc2 in contact with the six rows of the second touch driving electrodes Tx2 The six rows of the touch driving electrodes Tx2 are connected to the second touch driving routing wires TW2. The other ends of the second touch driving electrode connecting wires Tc2 are connected to each other and then connected to the grounding wire GW by another electrostatic discharge circuit.

The first touch driving routing wire TW1 and the second touch driving routing wire TW2 are respectively connected to the first touch driving routing pad TP1 and the second touch driving routing pad TP2, and supply the touch driving voltage to the first The touch driving electrode Tx1 and the second touch driving electrode Tx2.

In the embodiment shown in FIG. 7 , the first touch driving line is composed of the first touch driving electrode Tx1 and the first touch driving electrode connecting wire Tc1 , and the second touch driving line is composed of the second touch driving electrode Tx2 . The second touch driving electrode is connected to the wire Tc2, and the first touch driving wire and the second touch driving wire are taken as an example to describe the touch driving electrode. The embodiment shown in FIG. 7 is only representative. By adjusting the number of touch drive electrode connection wires connected by the connection portion, the number of touch drive lines can be determined as needed.

The first touch non-sensing electricity that is in contact with the first touch non-sensing electrode S1 A connecting wire connecting the ends of the pole connecting wires Sc1 to each other, the first touch sensing electrode S1 located in the first touch sensing area SA1 is connected to the grounding wire GW. After the ends of the second touch sensing electrode connection wires Sc2 that are in contact with the second touch sensing electrodes S2 are connected to each other, the second touch sensing in the second touch sensing area SA2 is not sensed. The electrode S2 is connected to the grounding conductor GW.

The first to fifth touch sensing electrodes are connected to the wires Rc1 by contacting the first to fifth touch sensing electrodes Rx11 and Rx12; Rx21 and Rx22; Rx31 and Rx32; Rx41 and Rx42; and Rx51 and Rx52; a connecting portion of the ends of the Rc5, the first to fifth touch sensing electrodes Rx11 and Rx12; Rx21 and Rx22; Rx31 and Rx32; Rx41 and Rx42; and Rx51 and Rx52 are connected to the first touch sensing Route wire RW1. The other ends of the first to fifth touch sensing electrode connecting wires Rc1 to Rc5 are connected in common, and then connected to the grounding wire GW by another electrostatic discharge circuit ESD.

The wires Rc6 to Rc10 are connected by contacting the sixth to tenth touch sensing electrodes Rx61 and Rx62; Rx71 and Rx72; Rx81 and Rx82; Rx91 and Rx92; and the sixth to tenth touch sensing electrodes of Rx101 and Rx102. a connecting portion of the ends connected to each other, sixth to tenth touch sensing electrodes Rx61 and Rx62; Rx71 and Rx72; Rx81 and Rx82; Rx91 and Rx92; and Rx101 and Rx102 are connected to the second touch sensing selection Road wire RW2. The other ends of the sixth to tenth touch sensing electrode connecting wires Rc6 to Rc10 are connected in common, and then connected to the grounding wire GW by a further electrostatic discharge circuit ESD.

The first touch sensing routing wire RW1 and the second touch sensing routing wire RW2 respectively contact the first and second touch sensing routing pads RP1 and RP2, and the first to tenth touch senses The probe connection wires Rc1 to Rc5 and Rc6 to Rc10 are supplied from the first to the first Five touch sensing electrodes Rx11 and Rx12; Rx21 and Rx22; Rx31 and Rx32; Rx41 and Rx42; and Rx51 and Rx52; and sixth to tenth touch sensing electrodes Rx61 and Rx62; Rx71 and Rx72; Rx81 and Rx82; Rx91 And Rx92; and Rx101 and Rx102 sense voltage to the touch processor (not shown).

In the embodiment shown in FIG. 7, the first touch sensing line is composed of first to fifth touch sensing electrodes Rx11 and Rx12; Rx21 and Rx22; Rx31 and Rx32; Rx41 and Rx42; and Rx51 and Rx52 and the first The fifth touch sensing electrode is composed of sixth to tenth touch sensing electrodes Rx61 and Rx62; Rx71 and Rx72; Rx81 and Rx82; Rx91 and Rx92; and Rx101. The Rx102 and the sixth to tenth touch sensing electrode connecting wires Rc6 to Rc10 are configured to illustrate the touch sensing electrodes by using two touch sensing lines including the first touch sensing line and the second touch sensing line as an example. . The embodiment shown in FIG. 7 is only representative. By adjusting the number of touch sensing electrode connection wires connected by the connection portion, the number of touch sensing lines can be determined as needed.

The touch driving electrodes Tx1 and Tx2 and the touch non-sensing electrodes S1 and S2 explained above are also used as the common electrode COM. In the horizontal electric field type display device, these electrodes are formed on the first substrate SUB1 of the thin film transistor array TFTA together with the pixel electrode Px, and the pixel electrode Px is formed in a region defined by the intersection of the gate line and the data line.

The touch driving electrodes Tx1 and Tx2 and the touch non-sensing electrodes S1 and S2 each serving as the common electrode COM are formed to respectively correspond to the unit pixel electrodes (each consisting of a plurality of sub-pixels required for presenting colors: the present invention Three sub-pixels in the embodiment).

The relationship between the touch sensing area and the touch non-sensing electrode, the touch driving electrode, and the pixel electrode in the touch driving area of the second representative embodiment of the present invention is substantially the same as that of the present invention. The first representative embodiment is identical, and thus further description is omitted.

The first and second representative embodiments of the present invention and the modified touch sensor integrated display device thereof have the following advantages, and are compatible with the design of the unit pixel electrode, the gate line and the data line of the display device, and are convenient The touch driving electrodes, the touch sensing electrodes and the wires constituting the touch sensor are designed.

In addition, since the contact hole for connecting the touch driving electrode and the touch sensing electrode is not required, the touch sensor integrated display device has the advantages of benefiting the high resolution product and the large size product by improving the aperture ratio.

In addition, since the touch sensing electrodes are not located in the touch driving region, the electrostatic capacitance and the parasitic capacitance can be reduced due to the reduction in the number of the touch sensing electrodes, so the touch sensor integrated display device has improved touch. The advantages of control performance.

In addition, by connecting the touch driving electrode and the touch sensing electrode to the electrostatic discharge circuit, static electricity entering from the outside can be cut off, so the touch sensor integrated display device has the advantage of increasing the stability of the device.

A person skilled in the art will recognize that changes and modifications can still be made without departing from the Detailed Description of the Invention.

Although the pixel electrode placed corresponding to each of the touch sensing electrodes and the touch non-sensing electrodes has been described as a single pixel electrode, the present invention is not limited thereto. For example, a plurality of unit pixel electrodes may be placed to correspond to each of the touch sensing electrodes and the touch non-sensing electrodes.

Furthermore, the touch driving electrodes explained in the above representative embodiments may be embodied as touch sensing electrodes, or vice versa.

In addition, although the first passivation film for thin film transistor protection is used for flatness The organic insulating film is separated and formed as an example to describe a representative embodiment of the present invention, but either the first passivation layer or the organic insulating layer can perform these two functions by itself.

In addition, the touch driving area is twice the size of the touch sensing area as an example to describe the second representative embodiment of the present invention. However, the present invention is not limited thereto, and the touch driving area may be the size of the touch sensing area. n times (n is a natural number equal to or greater than 2). Therefore, the technical scope of the present invention is not limited to the detailed description of the specification, but is defined by the scope of the appended claims.

RP1, RP2‧‧‧ touch sensing routing pad

TP1, TP2‧‧‧ touch drive routing pad

GP1, GP2‧‧‧ grounding pad

TW1, TW2‧‧‧ touch drive routing wire

GW‧‧‧Grounding wire

RW1, RW2‧‧‧ touch sensing routing wire

TA1, TA2, TA3, TA4‧‧‧ touch drive area

SA1, SA2‧‧‧ touch sensing area

S1, S2‧‧‧ touch non-sensing electrodes

Tc11, Tc12, Tc21, Tc22‧‧‧ drive electrode connecting wires

Tx11, Tx12, Tx21, Tx22‧‧‧ touch drive electrodes

Rc1, Rc2~Rc10‧‧‧ touch sensing electrode connecting wires

Rx11, Rx21~Rx101‧‧‧ touch sensing electrodes

Rx12, Rx22~Rx102‧‧‧ touch sensing electrodes

ESD‧‧‧Electrostatic Discharge Circuit

Sc1, Sc2‧‧‧ touch non-sensing electrode connecting wires

R1, R2‧‧‧ area

Claims (12)

A touch sensor integrated display device includes: a plurality of first regions, a plurality of first electrodes respectively located in the first regions; and a plurality of second regions, wherein the plurality of second electrodes and the plurality of first regions The three electrodes are alternately arranged along a first direction to avoid contact with each other, wherein the first electrodes respectively located in the first regions are connected to each other along the first direction, respectively, in the second regions The two electrodes are connected to each other along the first direction, and the third electrodes respectively located in the second regions are arranged in a second direction crossing the first direction, wherein the first regions serve as touch driving In the area, the second areas serve as touch sensing areas, and when the first areas are used as touch sensing areas, the second areas serve as touch driving areas. The touch sensor integrated display device of claim 1, wherein the first regions are the same size as the second regions. The touch sensor integrated display device of claim 2, wherein two first regions are located between the second regions, and the first electrodes located in the two first regions are connected to each other A touch routing conductor, and the second electrodes located in the second regions are connected to each other and to ground. The touch sensor integrated display device of claim 3, wherein the first electrodes respectively located in the first regions are connected by a plurality of first connections The wires are connected to each other, the first connecting wires are arranged to contact the first electrodes, and the second electrodes respectively located in the second regions are connected to each other by a plurality of second connecting wires, the second Connecting wires are arranged to contact the second electrodes. The touch sensor integrated display device of claim 4, wherein the third electrodes respectively located in the second regions are connected to each other by a plurality of third connecting wires to form at least two electrically separated The third connecting wires are arranged to contact the third electrodes, and the third connecting wires are arranged to intersect the first and second connecting wires. The touch sensor integrated display device of claim 1, wherein the first regions and the second regions are alternately arranged, and the sizes of the first regions are larger than the sizes of the second regions. The touch sensor integrated display device of claim 6, wherein the first electrodes respectively located in the first regions are connected to each other to a touch routing wire, and are respectively located in the second regions. The second electrodes in the middle are connected to each other and grounded. The touch sensor integrated display device of claim 7, wherein the first connecting wires are connected to the first electrodes in the first regions between the second regions, respectively. The first connecting wires are connected to each other by a fourth connecting wire, and the second connecting wires are respectively connected to the second electrodes in the second regions, and the second connecting wires are connected by a fifth connecting wire Connect to each other. The touch sensor integrated display device of claim 8, wherein the third connecting wires are respectively connected to the third electrodes in the second regions, and the third connecting wires are connected by a third The six connecting wires are connected to each other to form at least two electrically separated groups, and the sixth connecting wires are arranged to intersect the fourth and fifth connecting wires. The touch sensor integrated display device according to any one of claims 1 to 9, wherein the first electrodes are touch driving electrodes that also function as a common electrode, and the second electrodes are also used as a common The touch non-sensing electrodes of the electrodes, and the third electrodes are touch sensing electrodes. The touch sensor integrated display device according to any one of claims 1 to 9, wherein the first electrodes are touch sensing electrodes serving as common electrodes, and the second electrodes are also used as The touch non-driving electrodes of the common electrode, and the third electrodes are touch driving electrodes. The touch sensor integrated display device according to any one of claims 1 to 9, further comprising at least one unit pixel electrode overlapping each of the first and second electrodes, the unit pixel electrode It consists of a plurality of sub-pixels for rendering colors.